<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./node_modules/axios/dist/axios.min.js"></script>
    <style>
        body{
            margin: 0;
            padding: 30px;
        }
    </style>
</head>
<body>
    <h1>修改用户</h1>

    <label for="username">用户名:</label>
    <input type="text" id="username">
    <br>

    <label for="password">密码:</label>
    <input type="text" id="password">
    <br>

    <button>提交</button>

    <script>
        //获取从index.html页面携带过来的id的值
        console.log(location)//发现href和search属性中都有id的值
        //console.log(location.search)//?id=1
        //console.log(location.search.replace('?',''))//id=1
        //console.log(location.search.replace('?','').split('='))//['id', '1']
        //console.log(location.search.replace('?','').split('=')[1])//1

        //方式一:手动解析获取id的值
        //const id = location.search.replace('?','').split('=')[1]
        //console.log(id)

        //方式二:通过URLSearchParams对象获取
        const id = new URLSearchParams(location.search).get('id')
        console.log(id)

        //发送axios的get请求,获取要修改用户的数据,进行回显操作
        axios.get(`http://localhost:3000/users/${id}`).then(res=>{
            const user = res.data
            console.log(user)
            //回显操作
            document.querySelector('#username').value = user.username
            document.querySelector('#password').value = user.password
        })

        //监听提交按钮,发送post请求,修改用户的数据
        document.querySelector('button').addEventListener('click',function(){
            //这里没有使用表单去搜集和提交数据,自己获取数据并提交
            //获取用户名和密码
            const username = document.querySelector('#username').value
            const password = document.querySelector('#password').value

            //发送put请求
            axios({
                url:`http://localhost:3000/users/${id}`,
                method:'put',
                data:{username:username,password:password}
            }).then(
                //跳转到首页
                location.href = './index.html'
            )
        }) 

    
    </script>

</body>
</html>